ReduceSize

100 KB target

Reduce an image to 100 KB

A practical ceiling for job boards and email. Keep the 100 KB target, resize phone photos sensibly, compare the result, then download with confidence.

Free · no account JPG · PNG · WebP Batch + ZIP

Drop your images here

Click anywhere or drop files, tweak options, then press Reduce

Quick presets

One tap for common upload caps—then press Reduce.

Auto-reduce after add

Off by default—you stay in control

Aim for a max file size

Chase a KB target instead of a quality slider

Resize longest side?Off — keep original pixels

Optional. Only images larger than this get scaled down; it is not your current photo size.

Resizing usually shrinks photos more than quality alone. PNG kept at original size rarely gets smaller (lossless)—turn on a cap here, or use a KB target to save as JPG.

How it works

  1. 01

    Drop one photo or a set

    Useful for job portals, email bios, and product shots that must stay under ~100 KB.

  2. 02

    Aim for 100 KB; set ~1280px

    Target is pre-filled. Cap the longest side near 1280px for form-friendly sharpness.

  3. 03

    Compare detail, then download

    Slide original vs reduced when fabric, text, or faces matter—then save or ZIP.

Why 100 KB shows up on career sites

Recruiters and ATS portals need photos small enough to store by the thousands, but large enough that a headshot doesn’t look like a stamp. One hundred kilobytes hits that compromise for on-screen review—especially once you stop uploading 12-megapixel originals.

This page pre-loads the target so you can focus on cropping and checking clarity instead of memorizing export settings.

Phone photo → portal photo

Most of the weight in a modern selfie is resolution you never show on a form. Cap the longest side around 1280px, keep Aim for a max file size at 100 KB, then Reduce. You’ll often land under the limit with quality that still looks fine in a browser.

Sending a document pack, not a headshot? Compress the PDF with PDF to 200 KB or the main PDF size reducer.

When to open Compare

  • Headshots where glasses or facial hair must stay distinct
  • Product photos with labels or serial stickers
  • Screenshots that include small UI text

If Compare shows mushy text, raise max edge slightly or accept a larger limit if the site allows—don’t only push quality down repeatedly.

Batching for one application season

Drop every portrait you might need (formal, casual, badge-style), reduce with the same 100 KB target, then ZIP download. Keep originals elsewhere; upload only the reduced copies that pass Compare.

Neighboring limits

School forms that print 50 KB belong on image to 50 KB. Extreme ID rules live at 20 KB. If you need quality control without a printed number, use the full image size reducer.

Common questions

Is 100 KB clear enough for job applications?

For on-screen reviewers, usually yes—especially after resizing a phone photo to around 1280px on the long edge.

Should I resize before chasing 100 KB?

Yes for multi-megapixel camera files. Cap dimensions first; the KB target then needs less aggressive quality cuts.

Can I attach the result to email?

That’s a common use. Confirm the new size in the list, Compare if the photo shows a product or face, then download and attach.

Does batch mode keep each file under 100 KB?

Each image is processed with the same target. Check per-file sizes after Reduce; re-run any item that stayed stubbornly large.

What if the site wants under 50 KB instead?

Use the 50 KB preset. Don’t over-compress here only to upload elsewhere under a tighter rule.